One Less 2-Pack Soda Can by StoreBound, Green and Black Sold as set of 2, one black can and one green can; Compostable, biodegradable, BPA free, made from cornstarch; Double wall insulation makes them perfect for cold or hot drinks Removable, sturdy pop-off lid for refilling water Compostable, biodegradable and BPA free Double wall insulation makes them perfect for cold or hot drinks